this is PQ not VBA. There is "no" code, at least they are automatically generated by PQ. What you need to do:
1 - click on the Table of any cell. Your Ribbon now will have Design and Query Tab
2 - Go to the Query tab and hit Refresh - that is it. It will pull all the files in the folder where you specified

If you want to see the code, click Edit and when the Editor comes up, on the Home tab, under Query. Hit Advanced Editor. That is the code generated by PQ